diff --git a/lib/include/mc_perf_event.h b/lib/include/mc_perf_event.h new file mode 100644 index 00000000..ffbd78d1 --- /dev/null +++ b/lib/include/mc_perf_event.h @@ -0,0 +1,287 @@ +#ifndef MC_PERF_EVNET_H +#define MC_PERF_EVENT_H + +#define PERF_ATTR_SIZE_VER0 64 /* sizeof first published struct */ +#define PERF_ATTR_SIZE_VER1 72 /* add: config2 */ +#define PERF_ATTR_SIZE_VER2 80 /* add: branch_sample_type */ +#define PERF_ATTR_SIZE_VER3 96 /* add: sample_regs_user */ + /* add: sample_stack_user */ +#define PERF_ATTR_SIZE_VER4 104 /* add: sample_regs_intr */ + +struct perf_event_attr; + +/** + * IOC Macro + */ +#define _IOC_NRBITS 8 +#define _IOC_TYPEBITS 8 + +#ifndef _IOC_SIZEBITS +# define _IOC_SIZEBITS 14 +#endif + +#ifndef _IOC_DIRBITS +# define _IOC_DIRBITS 2 +#endif + +#define _IOC_NRSHIFT 0 +#define _IOC_TYPESHIFT (_IOC_NRSHIFT+_IOC_NRBITS) +#define _IOC_SIZESHIFT (_IOC_TYPESHIFT+_IOC_TYPEBITS) +#define _IOC_DIRSHIFT (_IOC_SIZESHIFT+_IOC_SIZEBITS) + +#ifndef _IOC_NONE +# define _IOC_NONE 0U +#endif + +#ifndef _IOC_WRITE +# define _IOC_WRITE 1U +#endif + +#ifndef _IOC_READ +# define _IOC_READ 2U +#endif + +#define _IOC(dir,type,nr,size) \ + (((dir) << _IOC_DIRSHIFT) | \ + ((type) << _IOC_TYPESHIFT) | \ + ((nr) << _IOC_NRSHIFT) | \ + ((size) << _IOC_SIZESHIFT)) + +#ifndef __KERNEL__ +#define _IOC_TYPECHECK(t) (sizeof(t)) +#endif + +/* used to create numbers */ +#define _IO(type,nr) _IOC(_IOC_NONE,(type),(nr),0) +#define _IOR(type,nr,size) _IOC(_IOC_READ,(type),(nr),(_IOC_TYPECHECK(size))) +#define _IOW(type,nr,size) _IOC(_IOC_WRITE,(type),(nr),(_IOC_TYPECHECK(size))) +#define _IOWR(type,nr,size) _IOC(_IOC_READ|_IOC_WRITE,(type),(nr),(_IOC_TYPECHECK(size))) +#define _IOR_BAD(type,nr,size) _IOC(_IOC_READ,(type),(nr),sizeof(size)) +#define _IOW_BAD(type,nr,size) _IOC(_IOC_WRITE,(type),(nr),sizeof(size)) +#define _IOWR_BAD(type,nr,size) _IOC(_IOC_READ|_IOC_WRITE,(type),(nr),sizeof(size)) + + +#define PERF_EVENT_IOC_ENABLE _IO ('$', 0) +#define PERF_EVENT_IOC_DISABLE _IO ('$', 1) +#define PERF_EVENT_IOC_REFRESH _IO ('$', 2) +#define PERF_EVENT_IOC_RESET _IO ('$', 3) + +enum perf_type_id { + PERF_TYPE_HARDWARE = 0, + PERF_TYPE_SOFTWARE = 1, + PERF_TYPE_TRACEPOINT = 2, + PERF_TYPE_HW_CACHE = 3, + PERF_TYPE_RAW = 4, + PERF_TYPE_BREAKPOINT = 5, + + PERF_TYPE_MAX, /* non-ABI */ +}; + +/** + * enum perf_event_active_state - the states of a event + */ +enum perf_event_active_state { +#ifndef __GENKSYMS__ + PERF_EVENT_STATE_EXIT = -3, +#endif + PERF_EVENT_STATE_ERROR = -2, + PERF_EVENT_STATE_OFF = -1, + PERF_EVENT_STATE_INACTIVE = 0, + PERF_EVENT_STATE_ACTIVE = 1, +}; + +enum perf_event_read_format { + PERF_FORMAT_TOTAL_TIME_ENABLED = 1U << 0, + PERF_FORMAT_TOTAL_TIME_RUNNING = 1U << 1, + PERF_FORMAT_ID = 1U << 2, + PERF_FORMAT_GROUP = 1U << 3, + + PERF_FORMAT_MAX = 1U << 4, /* non-ABI */ +}; + +enum perf_hw_id { + /* + * Common hardware events, generalized by the kernel: + */ + PERF_COUNT_HW_CPU_CYCLES = 0, + PERF_COUNT_HW_INSTRUCTIONS = 1, + PERF_COUNT_HW_CACHE_REFERENCES = 2, + PERF_COUNT_HW_CACHE_MISSES = 3, + PERF_COUNT_HW_BRANCH_INSTRUCTIONS = 4, + PERF_COUNT_HW_BRANCH_MISSES = 5, + PERF_COUNT_HW_BUS_CYCLES = 6, + PERF_COUNT_HW_STALLED_CYCLES_FRONTEND = 7, + PERF_COUNT_HW_STALLED_CYCLES_BACKEND = 8, + PERF_COUNT_HW_REF_CPU_CYCLES = 9, + + PERF_COUNT_HW_MAX, /* non-ABI */ +}; + +/* + * Hardware event_id to monitor via a performance monitoring event: + */ +struct perf_event_attr { + + /* + * Major type: hardware/software/tracepoint/etc. + */ + unsigned int type; + + /* + * Size of the attr structure, for fwd/bwd compat. + */ + unsigned int size; + + /* + * Type specific configuration information. + */ + unsigned long config; + + union { + unsigned long sample_period; + unsigned long sample_freq; + }; + + unsigned long sample_type; + unsigned long read_format; + + unsigned long disabled : 1, /* off by default */ + inherit : 1, /* children inherit it */ + pinned : 1, /* must always be on PMU */ + exclusive : 1, /* only group on PMU */ + exclude_user : 1, /* don't count user */ + exclude_kernel : 1, /* ditto kernel */ + exclude_hv : 1, /* ditto hypervisor */ + exclude_idle : 1, /* don't count when idle */ + mmap : 1, /* include mmap data */ + comm : 1, /* include comm data */ + freq : 1, /* use freq, not period */ + inherit_stat : 1, /* per task counts */ + enable_on_exec : 1, /* next exec enables */ + task : 1, /* trace fork/exit */ + watermark : 1, /* wakeup_watermark */ + /* + * precise_ip: + * + * 0 - SAMPLE_IP can have arbitrary skid + * 1 - SAMPLE_IP must have constant skid + * 2 - SAMPLE_IP requested to have 0 skid + * 3 - SAMPLE_IP must have 0 skid + * + * See also PERF_RECORD_MISC_EXACT_IP + */ + precise_ip : 2, /* skid constraint */ + mmap_data : 1, /* non-exec mmap data */ + sample_id_all : 1, /* sample_type all events */ + + exclude_host : 1, /* don't count in host */ + exclude_guest : 1, /* don't count in guest */ + + exclude_callchain_kernel : 1, /* exclude kernel callchains */ + exclude_callchain_user : 1, /* exclude user callchains */ + mmap2 : 1, /* include mmap with inode data */ + +#ifdef __GENKSYMS__ + __reserved_1 : 40; +#else + comm_exec : 1, /* flag comm events that are due to an exec */ + __reserved_1 : 39; +#endif + + union { + unsigned int wakeup_events; /* wakeup every n events */ + unsigned int wakeup_watermark; /* bytes before wakeup */ + }; + + unsigned int bp_type; + union { + unsigned long bp_addr; + unsigned long config1; /* extension of config */ + }; + union { + unsigned long bp_len; + unsigned long config2; /* extension of config1 */ + }; + unsigned long branch_sample_type; /* enum perf_branch_sample_type */ + + /* + * Defines set of user regs to dump on samples. + * See asm/perf_regs.h for details. + */ + unsigned long sample_regs_user; + + /* + * Defines size of the user stack to dump on samples. + */ + unsigned int sample_stack_user; + + /* Align to unsigned long. */ + unsigned int __reserved_2; + /* + * Defines set of regs to dump for each sample + * state captured on: + * - precise = 0: PMU interrupt + * - precise > 0: sampled instruction + * + * See asm/perf_regs.h for details. + */ +#ifndef __GENKSYMS__ + unsigned long sample_regs_intr; +#endif +}; + + +struct mc_perf_event { + // open時の引数に渡されたattr + struct perf_event_attr attr; + + enum perf_event_active_state state; + int counter; + + // group関連 + struct mc_perf_event *group_leader; + struct list_head sibling_list; + int nr_siblings; + + struct list_head child_list; + struct list_head group_entry; + +}; + +struct perf_event_mmap_page { + unsigned int version; + unsigned int compat_version; + + unsigned int lock; + unsigned int index; + long offset; + unsigned long time_enabled; + unsigned long time_running; + union { + unsigned long capabilities; + //struct { + unsigned long cap_bit0 : 1, /* Always 0, deprecated, see commit 860f085b74e9 */ + cap_bit0_is_deprecated : 1, /* Always 1, signals that bit 0 is zero */ + cap_user_rdpmc : 1, /* The RDPMC instruction can be used to read counts */ + cap_user_time : 1, /* The time_* fields are used */ + cap_user_time_zero : 1, /* The time_zero field is used */ + cap_____res : 59; + //}; + }; + unsigned short pmc_width; + + unsigned short time_shift; + unsigned int time_mult; + unsigned long time_offset; + + unsigned long time_zero; + unsigned int size; + + unsigned char __reserved[118*8+4]; + + unsigned long data_head; + unsigned long data_tail; +}; + +#endif +